I agree no need. I've never jumped out of an areoplane but I reakon if anyone did they'd get away without needing a parachute. I dunno like hit a forest of pine trees and allow the branches to cushion the fall that sort of thing
PCT forum - 'the official PCT thread' by Eric will be all you need to know. Its good you asked before jumping though. I know nothing but threads cropping up here 'I'm in 1950ft into a 2000ft fall/total shut down and its not going well, errhh... is a parachute needed?'